Hurricane Idalia 11pm update: Category 4 landfall

Hurricane Idalia continues to strengthen in the Gulf of Mexico on its way to Florida, where it's now expected to make landfall as an extremely dangerous category 4 hurricane. In the 11 p.m. update, Hurricane Idalia has sustained winds of 110 mph, which makes it a powerful category 2 hurricane. It becomes a major category 3 hurricane when its winds reach 111 mph.